@article{Wu2023, 
author = {Pengfei Wu and Tingting You and Qingyuan Ren and Hongyan Xi and Qingqing Liu and Fengjuan Qin and Hongfei Gu and Yu Wang and Wensheng Yan and Yukun Gao and Wenxing Chen and Penggang Yin},
title = {Interface electronic engineering of molybdenum sulfide/MXene hybrids for highly efficient biomimetic sensors},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {1},
pages = {1158-1164},
keywords = {MXene, molybdenum sulfide, X-ray absorption spectroscopy, interface electronic effect, biomimetic sensor},
url = {https://www.sciopen.com/article/10.1007/s12274-022-5038-3},
doi = {10.1007/s12274-022-5038-3},
abstract = {Interface regulation plays a key role in the electrochemical performance for biosensors. By controlling the interfacial interaction, the electronic structure of active species can be adjusted effectively at micro and nano-level, which results in the optimal reaction energy barrier. Herein, we propose an interface electronic engineering scheme to design a strongly coupled 1T phase molybdenum sulfide (1T-MoS2)/MXene hybrids for constructing an efficient electrocatalytic biomimetic sensor. The local electronic and atomic structures of the 1T-MoS2/Ti3C2TX are comprehensively studied by synchrotron radiation-based X-ray photoelectron spectroscopy (XPS), as well as X-ray absorption spectroscopy (XAS) at atomic level. Experiments and theoretical calculations show that there are interfacial stresses, atomic defects and adjustable bond-length between MoS2/MXene nanosheets, which can significantly promote biomolecular adsorption and rapid electron transfer to achieve excellent electrochemical activity and reaction kinetics. The 1T-MoS2/Ti3C2TX modified electrode shows ultra high sensitivity of 1.198 μA/μM for dopamine detection with low limit of 0.05 μM. We anticipate that the interface electronic engineering investigation could provide a basic idea for guiding the exploration of advanced biosensors with high sensitivity and low detection limit.}
}